Efficient enhancement of hydrogen production by Ag/Cu2O/ZnO tandem triple-junction photoelectrochemical cell

Liu, Ying; Ren, Feng; Shen, Shaohua; Fu, Yanming; Chen, Chao; Liu, Chang; Xing, Zhuo; Liu, Dan; Xiao, Xiangheng; Wu, Wei; Zheng, Xudong; Liu, Yichao; Jiang, Changzhong

doi:10.1063/1.4916224

Cited by 41 publications

(26 citation statements)

References 25 publications

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“…The optically active T 2g phonon mode for Cu 2 O, meant to be present around 517 cm −1 , seems to be suppressed under the intense Si peak. 32 This Raman analysis of the printed thin films provides a strong evidence of the stated in situ reduction process and is in absolute agreement with the x-ray spectroscopic measurements.…”

Section: Resultssupporting

confidence: 84%

Plasma jet based in situ reduction of copper oxide in direct write printing

Dey

Lopez

Filipič

et al. 2019

Journal of Vacuum Science &Amp; Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phen

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Printing of nanostructured films with tailored oxidation state and electronic structure can have far reaching applications in several areas including printable electronics, optoelectronics, solar cells, catalytic conversion, and others. Widely used inkjet/aerosol/screen printing techniques require pre- and postprocessing for enhanced adhesion and tailoring of the chemical state of the thin film. Herein, we demonstrate atmospheric pressure plasma jet printing with unique capability to print and tune in situ the electronic properties and surface morphology of nanomaterials. Plasma printing of copper thin films with tailored oxidation state from an inexpensive copper oxide precursor is demonstrated and characterized using x-ray absorption spectroscopy, Raman spectroscopy, and electrical measurements.

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Section: Resultssupporting

confidence: 84%

Plasma jet based in situ reduction of copper oxide in direct write printing

Dey

Lopez

Filipič

et al. 2019

Journal of Vacuum Science &Amp; Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phen

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“…This enhancement was ascribed to the integrated reasons including effective charge separation with the aid of NiO x layer and highly efficient hot electrons injection from Au NPs for water reduction. Construction of p–n heterojunction combined with the plasmonic metals has also been evidenced to be an effective approach to improve the PEC water splitting performances by harnessing their cooperative synergy for remarkable hot electrons injection and field enhancement …”

Section: Recent Progresses On Spr‐induced Pec Water Splittingmentioning

confidence: 99%

Plasmon‐Dictated Photo‐Electrochemical Water Splitting for Solar‐to‐Chemical Energy Conversion: Current Status and Future Perspectives

Xiao

Liu

2018

Adv Materials Inter

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attention has been devoted to the conversion of solar light into chemical energy for satisfying increasing demands of energy consumption, such as photocatalysis, photovoltaics, and photoelectrocatalysis. [3,4] In particular, photo-electrochemical (PEC) water splitting with assistance of solar light for hydrogen production has been deemed as a rather promising route to ameliorate the increasing energy crisis since the pioneer work launched in 1972 by Honda and Fujishima, who judiciously harnessed TiO 2 powder electrode to achieve water splitting under UV light irradiation. [5][6][7] Thereafter, various semiconductors especially transition metal oxides have been extensively explored for PEC water splitting. Notwithstanding the advancements achieved in the past few decades, there still remain two issues that need to be circumvented with a view to fully utilizing the semiconducting materials for water splitting, including poor light-harvesting efficiency of wideband-gap semiconductors (e.g., TiO 2 , ZnO, SrTiO 3 , etc.), which only absorb UV light that accounts for merely 5% of the solar spectrum, and high recombination rate of photogenerated electron-hole charge carriers. To solve these problems, diverse strategies have been developed including (1) structure and/or morphology engineering for improving light trapping and shortening the travel distance of charge carriers to their surfaces, [8] (2) elemental doping to induce the formation of intraband gap state, [9,10] (3) sensitizing the semiconductor with organic dyes or narrow-band-gap quantum dots to improve the visible light absorption, [11][12][13][14][15][16][17][18] (4) construction of heterostructures or heterojunctions, [19,20] and (5) optimization of the crystal structure. [21] Nonetheless, it is worth noting that possible formation of undesirable defects at the interface and unfavorable stability of photosensitizers may occur in the above-mentioned strategies, which eventually retard the fabrication of highly efficient semiconductor-based photoelectrodes. Therefore, it is highly desirable to seek a more efficacious tactic to boost the photoresponse of wide band gap semiconductors.Decoration of semiconductors with metal nanostructures has been regarded as an alternative and powerful approach to improve the solar-to-hydrogen conversion efficiency of wideband-gap semiconductors by virtue of the intrinsically unique surface plasmon resonance (SPR) effect and electron capturing

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“…Raman frequencies of C/Cu 2 O NNs ( Fig. 2C) however only show peaks of Cu 2 O, 45 probably due to the low contribution of intensity from the carbon layer. Additional Raman spectra of Cu foil, Cu(OH) 2 NNs, Cu 2 O NNs, and C/Cu 2 O NNs prepared with other dextrose concentrations are shown in Fig.…”

Section: Resultsmentioning

confidence: 98%

Photoelectrochemical study of carbon-modified p-type Cu₂O nanoneedles and n-type TiO_2−x nanorods for Z-scheme solar water splitting in a tandem cell configuration

Kaneza

Shinde

et al. 2019

RSC Adv.

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Efficient enhancement of hydrogen production by Ag/Cu2O/ZnO tandem triple-junction photoelectrochemical cell

Cited by 41 publications

References 25 publications

Plasma jet based in situ reduction of copper oxide in direct write printing

Plasma jet based in situ reduction of copper oxide in direct write printing

Plasmon‐Dictated Photo‐Electrochemical Water Splitting for Solar‐to‐Chemical Energy Conversion: Current Status and Future Perspectives

Photoelectrochemical study of carbon-modified p-type Cu₂O nanoneedles and n-type TiO_2−x nanorods for Z-scheme solar water splitting in a tandem cell configuration

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Efficient enhancement of hydrogen production by Ag/Cu2O/ZnO tandem triple-junction photoelectrochemical cell

Cited by 41 publications

References 25 publications

Plasma jet based in situ reduction of copper oxide in direct write printing

Plasma jet based in situ reduction of copper oxide in direct write printing

Plasmon‐Dictated Photo‐Electrochemical Water Splitting for Solar‐to‐Chemical Energy Conversion: Current Status and Future Perspectives

Photoelectrochemical study of carbon-modified p-type Cu2O nanoneedles and n-type TiO2−x nanorods for Z-scheme solar water splitting in a tandem cell configuration

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Product

Resources

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Photoelectrochemical study of carbon-modified p-type Cu₂O nanoneedles and n-type TiO_2−x nanorods for Z-scheme solar water splitting in a tandem cell configuration